Amines & Nitrogen Compounds · JEE Main previous year questions

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2024 20 questions

Q832024 · 9 Apr 2024 · Shift 2· Numerical answer
Number of compounds from the following which cannot undergo Friedel-Crafts reactions is: ____ toluene, nitrobenzene, xylene, cumene, aniline, chlorobenzene, $m$ -nitroaniline, $m$ -dinitrobenzene
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Answer: 4
Q772024 · 8 Apr 2024 · Shift 1
1. A.Both Statement I and Statement II are incorrect.
2. B.Both Statement I and Statement II are correct.
3. C.Statement I is correct but Statement II is incorrect.
4. D.Statement I is incorrect but Statement II is correct.
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Answer: D
Q812024 · 8 Apr 2024 · Shift 1· Numerical answer
If $279 g$ of aniline is reacted with one equivalent of benzenediazonium chloride, the maximum amount of aniline yellow formed will be ____ g. (nearest integer) (consider complete conversion).
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Answer: 591
Q902024 · 8 Apr 2024 · Shift 1· Numerical answer
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Answer: 5
Q872024 · 6 Apr 2024 · Shift 2· Numerical answer
An amine (X) is prepared by ammonolysis of benzyl chloride. On adding p-toluenesulphonyl chloride to it the solution remains clear. Molar mass of the amine (X) formed is ________ $gmol^{- 1}$ . (Given molar mass in $gmol^{- 1} C : 12, H : 1, O : 16, N : 14$ )
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Answer: 287
Q892024 · 5 Apr 2024 · Shift 2· Numerical answer
$X g$ of ethanamine was subjected to reaction with $NaN O_{2} /HCl$ followed by hydrolysis to liberate $N_{2}$ and $HCl$ . The $HCl$ generated was completely neutralised by $0.2 moles$ of $NaOH$ . $X$ is ____ $g$ .
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Answer: 9
Q852024 · 4 Apr 2024 · Shift 1· Numerical answer
$X g$ of ethylamine is subjected to reaction with $NaN O_{2} /HCl$ followed by water; evolved dinitrogen gas which occupied $2.24 L$ volume at STP. $X$ is ____ $\times 1 0^{- 1} g$ .
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Answer: 45
Q862024 · 4 Apr 2024 · Shift 1· Numerical answer
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Answer: 1
Q842024 · 4 Apr 2024 · Shift 2· Numerical answer
From $6.55 g$ of aniline, the maximum amount of acetanilide that can be prepared will be ________ $\times 1 0^{- 1} g$ .
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Answer: 95
Q722024 · 1 Feb 2024 · Shift 1
Given below are two statements : Statement (I) : The $N H_{2}$ group in Aniline is ortho and para directing and a powerful activating group. Statement (II) : Aniline does not undergo Friedel-Craft's reaction (alkylation and acylation). In the light of the above statements, choose the most appropriate answer from the options given below :
1. A.Both Statement I and Statement II are correct
2. B.Both Statement I and Statement II are incorrect
3. C.Statement I is correct but Statement II is incorrect
4. D.Statement I is incorrect but Statement II is correct
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Answer: A
Q752024 · 1 Feb 2024 · Shift 1
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Haloalkanes react with KCN to form alkyl cyanides as a main product while with $AgCN$ form isocyanide as the main product. Reason (R) : $KCN$ and $AgCN$ both are highly ionic compounds. In the light of the above statements, choose the most appropriate answer from the options given below :
1. A.(A) is correct but $(R)$ is not correct
2. B.Both (A) and (R) are correct and (R) is the correct explanation of (A)
3. C.(A) is not correct but (R) is correct
4. D.Both (A) and (R) are correct but (R) is not the correct explanation of (A)
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Answer: A
Q782024 · 1 Feb 2024 · Shift 1
Given below are two statements : Statement (I) : Aminobenzene and aniline are same organic compounds. Statement (II) : Aminobenzene and aniline are different organic compounds. In the light of the above statements, choose the most appropriate answer from the options given below :
1. A.Both Statement I and Statement II are correct
2. B.Statement I is incorrect but Statement II is correct
3. C.Statement I is correct but Statement II is incorrect
4. D.Both Statement I and Statement II are incorrect
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Answer: C
Q892024 · 1 Feb 2024 · Shift 2· Numerical answer
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Answer: 5
Q762024 · 31 Jan 2024 · Shift 1
Match List I with List II $(A) (B) (C) (D) List - I (Technique) Distillation Fractional distillation Steam distillation Distillation under reduced pressure (I) (II) (III) (IV) List - II (Application) Separation of glycerol from spent-lye Aniline - Water mixture Separation of crude oil fractions Chloroform - Aniline$ Choose the correct answer from the options given below:
1. A.A-I, B-II, C-IV, D-III
2. B.A-II, B-III, C-I, D-IV
3. C.A-IV, B-I, C-II, D-III
4. D.A-IV, B-III, C-II, D-I
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Answer: D
Q652024 · 31 Jan 2024 · Shift 2
1. A.
2. B.
3. C.
4. D.
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Answer: C
Q792024 · 31 Jan 2024 · Shift 2
Given below are two statements : Statement I : Aniline reacts with con. $H_{2} S O_{4}$ , followed by heating at $453 - 473 K$ gives $p$ -aminobenzene sulphonic acid, which gives blood red colour in the 'Lassaigne's test'. Statement II : In Friedel - Craft's alkylation and acylation reactions, aniline forms salt with the $AlC l_{3}$ catalyst. Due to this, nitrogen of aniline aquires a positive charge and acts as deactivating group. In the light of the above statements, choose the correct answer from the options given below :
1. A.Both statement I and statement II are true
2. B.Statement I is true but statement II is false
3. C.Statement I is false but statement II is true
4. D.Both statement I and statement II are false
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Answer: A
Q772024 · 30 Jan 2024 · Shift 1
1. A.
2. B.
3. C.
4. D.
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Answer: A
Q652024 · 29 Jan 2024 · Shift 1
1. A.
2. B.
3. C.
4. D.
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Answer: D
Q732024 · 29 Jan 2024 · Shift 1
1. A.
2. B.
3. C.
4. D.
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Answer: A
Q872024 · 27 Jan 2024 · Shift 2· Numerical answer
$9.3 g$ of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is $100%$ completed is _______ $\times 1 0^{- 1} g$ . (Given molar mass in $g mol^{- 1}$ $N : 14, O : 16$ , $C : 12, H : 1$ )
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Answer: 135